The earth's climate is changing. Multiple lines of evidence show changes in our weather, oceans, ecosystems, and more. The buildup of greenhouse gases in our atmosphere and the warming of the planet are responsible for changes.| US EPA
Sources of greenhouse gas emissions, inculding electricity production, tranportation, industry, agriculture, and forestry.| US EPA
U.S. energy supply by types of energy sources and energy consumption by transportation, industrial, commercial, residential, and electric power sectors.| www.eia.gov